Warn about assigning to Py3k keywords (True and False)
diff --git a/Lib/test/test_py3kwarn.py b/Lib/test/test_py3kwarn.py
index 617d996..18298fe 100644
--- a/Lib/test/test_py3kwarn.py
+++ b/Lib/test/test_py3kwarn.py
@@ -16,6 +16,55 @@
exec "`2`" in {}
self.assertWarning(None, w, expected)
+ def test_bool_assign(self):
+ # So we don't screw up our globals
+ def safe_exec(expr):
+ def f(**kwargs): pass
+ exec expr in {'f' : f}
+
+ expected = "assignment to True or False is forbidden in 3.x"
+ with catch_warning() as w:
+ safe_exec("True = False")
+ self.assertWarning(None, w, expected)
+ with catch_warning() as w:
+ safe_exec("False = True")
+ self.assertWarning(None, w, expected)
+ with catch_warning() as w:
+ try:
+ safe_exec("obj.False = True")
+ except NameError: pass
+ self.assertWarning(None, w, expected)
+ with catch_warning() as w:
+ try:
+ safe_exec("obj.True = False")
+ except NameError: pass
+ self.assertWarning(None, w, expected)
+ with catch_warning() as w:
+ safe_exec("def False(): pass")
+ self.assertWarning(None, w, expected)
+ with catch_warning() as w:
+ safe_exec("def True(): pass")
+ self.assertWarning(None, w, expected)
+ with catch_warning() as w:
+ safe_exec("class False: pass")
+ self.assertWarning(None, w, expected)
+ with catch_warning() as w:
+ safe_exec("class True: pass")
+ self.assertWarning(None, w, expected)
+ with catch_warning() as w:
+ safe_exec("def f(True=43): pass")
+ self.assertWarning(None, w, expected)
+ with catch_warning() as w:
+ safe_exec("def f(False=None): pass")
+ self.assertWarning(None, w, expected)
+ with catch_warning() as w:
+ safe_exec("f(False=True)")
+ self.assertWarning(None, w, expected)
+ with catch_warning() as w:
+ safe_exec("f(True=1)")
+ self.assertWarning(None, w, expected)
+
+
def test_type_inequality_comparisons(self):
expected = 'type inequality comparisons not supported in 3.x'
with catch_warning() as w: